Granted Patent
Utility
US 6,682,774 · App. 10/165,210
Direct application of catalysts to substrates for treatment of the atmosphere
Inventors:
John R. Smith, Michel F. Sultan, Ming-Cheng Wu, Zhibo Zhao
Patented Case
View Patent ↗
Granted: Jan 27, 2004
Filed: Jun 7, 2002
Inventors
John R. Smith
Michel F. Sultan
Ming-Cheng Wu
Zhibo Zhao
Assignee (at issue)
Delphi Technologies
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.